From: Mike Kling 
Newsgroups: alt.alien.visitors
Subject: Mapping Area 51
Date: Wed, 07 Aug 1996 22:20:08 -0700

FYI

I am a cartographer at the USGS Mid-Continent Mapping Center, and
formerly I worked at the Rocky Mountain Mapping Center. While I was at
Rocky I was involved in a mapping project in and around the Nellis
Bombing Range. I compiled the Groom Lake Quads (it's on more than one
1;24,000 quad map.  The photos that I compiled the map from had been
screened by the Air Force before we received them. The AF had scraped
the emulsion off (not satisfied with just inking over) the photos for
certain areas in that vicinity. That partially explains the blank spots
on the maps, another explanation is that there aren't many mappable
features out in that region anyway. What was funny is that there would
be miles of dirt road, then it would change to paved road, then you'd
hit the scraped off emulsion. There were several areas scaped off but
the areas that I saw were less than about 300 acres each. Not much of a
base can fit in an area that size.

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8/18/96